GM Service Manual Online
For 1990-2009 cars only

Intake Manifold Removal LDK


    Object Number: 2074510  Size: SH

    Caution: Never attempt to remove the intake manifold from a hot engine, allow the engine to cool to ambient temperature. The intake manifold is made of a composite plastic and can be damaged if it is removed when the engine is hot.

    Note: The charger AIR bypass tube assembly connected from the charger AIR bypass valve solenoid to the charger AIR bypass valve tank assembly is permanently attached to the tank assembly. Do not attempt to disconnect the charger AIR bypass tube assembly at the charger AIR bypass valve tank assembly.

  1. Disconnect the charger AIR bypass tube with the retaining clip from the charger AIR bypass valve tank assembly.
  2. Disconnect the remaining charger AIR bypass tubes at the turbocharger and vehicle.
  3. Remove the charger AIR bypass valve solenoid bolts.
  4. Remove the charger AIR bypass valve solenoid (1).

  5. Object Number: 2045492  Size: SH
  6. Disconnect the charger AIR bypass tube assembly (3) from the intake manifold.
  7. Remove the charger AIR bypass valve tank assembly nut (2).
  8. Note: The charger AIR bypass bolt is captured on the bracket and should not be removed from the bracket. Loosen the bolt only until it is no longer attached to the block when removing the charger AIR bypass valve tank assembly.

  9. Loosen the charger AIR bypass valve tank assembly bolt.
  10. Remove the charger AIR bypass valve tank assembly (1).

  11. Object Number: 2146267  Size: SH

    Warning: Fuel that flows out at high pressure can cause serious injury to the skin and eyes. ALWAYS depressurize the fuel system before removing components that are under high fuel pressure.

  12. Loosen and disconnect the fuel feed line tube nut (1).
  13. Remove the fuel feed line bolts.
  14. Remove the fuel feed line (2).
  15. Inspect the fuel feed line nut for damaged threads.
  16. Inspect the fuel feed line sealing bail for damage or debris.
  17. Replace the fuel feed line if any damage is found.

  18. Object Number: 2146268  Size: SH
  19. Remove the high pressure fuel pump cover bolts.
  20. Remove the high pressure fuel pump cover (2).
  21. Remove the high pressure fuel pump noise insulator (1).

  22. Object Number: 2146269  Size: SH
  23. Remove the throttle body bolts.
  24. Remove the throttle body (1).

  25. Object Number: 2074512  Size: SH
  26. Remove the power brake booster pump bolts.
  27. Remove the power brake booster pump (2).
  28. Remove and discard the power brake booster O-ring seal (1).

  29. Object Number: 2146270  Size: SH
  30. Disconnect the rear knock sensor from the intake manifold brace.
  31. Remove the intake manifold brace bolt (1).
  32. Remove the intake manifold brace (2).

  33. Object Number: 2141358  Size: SH
  34. Remove the MAP sensor bolt (1) and MAP sensor (2).
  35. Remove the EVAP purge solenoid valve bolt (3) and valve (4).

  36. Object Number: 2141361  Size: SH
  37. Remove the intake manifold bolts and nuts (3).
  38. Remove the intake manifold (2).
  39. Remove the intake manifold gasket (1).

Intake Manifold Removal LTD, LE5


    Object Number: 2128097  Size: SH

    Caution: Never attempt to remove the intake manifold from a hot engine, allow the engine to cool to ambient temperature. The intake manifold is made of a composite plastic and can be damaged if it is removed when the engine is hot.

  1. Remove the evaporative emission (EVAP) canister valve tube (1).
  2. Remove the EVAP canister valve (2).

  3. Object Number: 2148438  Size: SH
  4. Remove the throttle body bolts.
  5. Remove the throttle body (1).

  6. Object Number: 2148442  Size: SH
  7. Remove fuel pipes and clip. Remove the fuel rail assembly (1).

  8. Object Number: 2148447  Size: SH
  9. Remove the fuel injector tip insulators (1) and discard.

  10. Object Number: 2148453  Size: SH
  11. Remove the intake manifold retaining nuts and bolts.
  12. Remove the intake manifold (1).
  13. Remove the intake manifold gasket, if necessary. The gasket can be used again if it is not damaged.
  14. If the intake manifold needs to be replaced, transfer the throttle body to the new intake manifold.